SWITCHED CORRECTION CIRCUIT OF THE EAST-WEST CUSHION DISTORTION FOR VIDEOFREQUENCY RECEIVER

摘要

The present invention relates to a correction circuit of the East-West cushion distortion. / P P This circuit comprises a correction transformer Tc whose primary is connected in series with the horizontal deflection coil Ld and the secondary in series with a correction capacitor Cc. A switch is connected in parallel with the secondary winding-correction capacitor assembly, and is controlled by the output signal of a phase modulator circuit 2 whose input is connected on the one hand to a generator circuit of a parabolic signal at the frame frequency 1 and secondly at the output of a counter-reactive network PB whose input is connected across the correction capacitor Cc. / P P This correction circuit equips video-frequency receivers, especially color television receivers. / P